Thanks a lot Elisa for the update
Indeed very useful work, glad someone is keeping a tab on the issue
You may rember from our previous exchanges that I have been following the
mapping to ODM
(I wrote a brief a couple of years ago which I hope I sent you a copy). I
must admit that event OMG stuff was a bit complicated (at least back then
when I first looked into it)
I make the case not only for the simple minded, but also for those in the
enterprise who have limited
resources to devote to learning curve, so any means of
simplyfining/schematizing the leaps from one construct to another
actually help bridge the (costly and risky) cognitive gaps add to the
usability/usefulness of the techniques
Will catch up with the new ODM spec, which is where I left it last time
Had heard of your talk on OWLED on somebody's twitter I am following, but
did not see the slides
so thanks for that
Keep us posted here too
cheers
PDM
The concepts summarized in the table you found are actually mapped in the
> Ontology Definition Metamodel -- http://www.omg.org/spec/ODM/1.0/. The
> chapters that provide RDF and OWL (OWL 1) metamodels include complete MOF
> metamodels for the abstract syntax of RDF and OWL, which may be useful, and
> the chapter that covers the UML profiles for RDF and OWL shows how one could
> use UML tools for ontology development, mapping basic UML notation to both
> languages (again, only for OWL 1).
> The current revision task force, meeting this week at the OMG meeting in
> Long Beach, is working towards eliminating remaining issues in the basic
> spec, which we hope to finalize at the March meeting. We then plan to work
> towards "upgrading" the specification to support OWL 2, although we have
> already been prototyping some features to make sure that there are no
> "gotchas" in the basic specification. I presented a paper on this at OWLED
> last month, in fact -- see
> http://www.webont.org/owled/2009/papers/owled2009_submission_47.pdf.
>
> Thanks for the reference -- it's great to see that people are finding it
> useful.
>
> Elisa
>
> Paola Di Maio wrote:
>
>> Following further enquiry into some aspects of this thread
>> I have come across an interesting (long) paper,
>>
>> Leveraging Knowledge reuse
>> and system Agility in the
>> Outsourcing Era
>> Igor Crk, University of Arizona, USA
>> Dane Sorensen,
>>
>> http://www.infosci-online.com/downloadPDF/pdf/ITJ4155_M28TbL5NcG.pdf
>>
>> (Not sure if requires campus level access or anyone can retrieve it, email
>> if you need a copy and cant access it)
>>
>>
>> At the very bottom of this paper, page 14, tables 3 and 4 show RDF
>> constructs in relation to the MOF (metaobject facility) equivalent
>>
>> I find this comparison extremely helpful, since it helps me understand RDF
>> properties in relation to other
>> contructs I may also be familiar with (Object Model)
>>
>> I tried to retrieve the same tables from the sources cited in the paper,
>> but did not find it immediately (didnt search much either)
>> http://www.w3schools.com/rdf/default.asp
>>
>> Wonder if a table like this is a useful cognitive artefact to explain RDF,
>> and wheter it already exists
>> somewhere in the spects and I may have missed it before?
>> (too much info perhaps)
>>
>>
>>
>>
>> PDM
>>
>> On Sun, Sep 27, 2009 at 11:07 AM, Paola Di Maio <paola.dimaio@gmail.com<mailto:
>> paola.dimaio@gmail.com>> wrote:
>>
>>
>> During Vocamp Glasgow, I tried to confront my difficulties in
>> identifying some domain range of few vocabularies that I started
>> rdfizing as practice, and from explosing my questions to a whole
>> range of RDF doctors (thanks Norm, Keith, Serge) two things
>> emerged, that i did not know before
>>
>> 1) an entity (class, object, subject) does not necessarily have
>> domain /range
>>
>> Is that so, and what's the rule/ and possibly exceptions/ that can
>> be inferred and applied?
>>
>> that did not emerge at Vocamp
>>
>>
>> 2) Apparently a triple can be of two kinds:
>>
>> class:relation:class
>>
>> but also
>> class:attribute:value
>>
>> Of this i would like some confirmtion (is this right?),
>> Finally, finally, wouldnt' this ambiguity be confusing?
>>
>> i dont have a case study for this yet, but if this is true I
>> suspect it could cause some possible logical conflict/ambiguity
>> in semantic data model and its implementation
>> am I the only one thinking so?
>>
>>
>> Are the above points addressed in some RDF tutorial
>>
>> please enlighten!
>> thanks a lot
>>
>> PDM
>>
>>
>>
>>
>>